Blue, just a suggestion... by “block” many of us mean.... his calls bypass your seeing them. You know? With iPhones they go to a “blocked” folder. You won’t even know he called unless you check this folder.
It was very very very hard for me initially but I never even listened to my ex’s messages. Ok, maybe once in the very beginning. But... I constantly deleted that folder. Also I did that in the mornings as folks (re:me) tend to be more sad/emotional at night.
Seeing his incoming calls is just another recipe for emotional disaster.